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Head: Prof. O.V. Kopelevich
- Seawater optical characteristics
- Light fields in the ocean from natural and artificial sources
- Design and implementation of optical and radiophysical methods, including remote sensing, for studying and monitoring the marine environment
During the 17th cruise of the R/V "Akademik Sergei Vavilov" undertaken under the "Meridian" project new methods based on a combination of satellite and shipboard measurements were tested successfully. The information from satellites prepared at the Laboratory of ocean optics of IO RAS in Moscow (daily and average weakly maps of the distribution of the ocean surface temperature, chlorophyll concentration and aerosol optical thickness from satellite scanners) was efficiently transmitted to the ship through a satellite communication terminal; on-line information from ship was transmitted to the P.P. Shirshov Institute of Oceanology. Such an approach has made it possible to obtain new interesting results, in particular, to discover a separated lense of the Amazon waters almost in the midst of the Atlantic Ocean, as well as to detect an anomalously productive water region opposite to the South American coast in the frontal zone which appeared as a result of interaction between the cold Falkland and the warm Brazil currents (Head Kopelevich O.V., Doctor of Physical and Mathematical Sciences).
Based on the measurements in the northern part of the Caspian Sea carried out from ships simultaneously with satellite observations of ocean colour using a Sea WIFS scanner, a complex of data has been obtained for the first time to be used for developing preliminary regional algorithms for the estimation of chlorophyll and suspended matter concentrations from optical data. It is shown, in particular, that the standard Sea WIFS data processing algorithm gives too higher (by 1.8 to 20 times) chlorophyll concentrations ( Head Kopelevich O.V., Doctor of Physical and Mathematical Sciences).
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